Home / 39,757.74-54,866.10-21,608.46

Finding the Fourth Proportional to 39,757.74, 54,866.10 and 21,608.46

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Solution

The fourth proportional to 39,757.74, 54,866.10 and 21,608.46 is: 29,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,757.74 : 54,866.10 = 21,608.46 : x
  2. Step 2: Convert to fraction form
    39,757.74/54,866.10 = 21,608.46/x
  3. Step 3: Cross multiply
    39,757.74x = 54,866.10 × 21,608.46
  4. Step 4: Simplify right side
    39,757.74x = 1,185,571,927.21
  5. Step 5: Solve for x
    x = 1,185,571,927.21/39,757.74
  6. Step 6: Final answer
    x = 29,819.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.